Aetemus eolqw



(No Model.)

A. ROLOW.

- PLOW.

No. 345,992. I Patented July 20, 1886.

UNITED STATES PATENTMQFFIQE' ARTEMUS ROLOIV, OF CHEROKEE, IOVA.

' PLOW.

SPECIFICATION forming part of Letters Patent No. 345,992, dated July 20,1886.

Application filed November 2, 1985.

The invention consists in the novel con-l struction and combinations ofparts hereinafter described, whereby the rack is arranged at a suitableheight and relation to the moldboard, and is at the same time bracedfirmly from the handles; and the invention consists in otherimprovements, as will be described.

In the drawings, Figure 1 is a perspective View, and Fig. 2 a rearelevation, of a plow constructed according to my invention.

In the class of plows to which my invention particularly relates, asabove specified, I have found it desirable to arrange the lever asnearly as possible to the rear end of the moldboard, in order that theadjusting strain may be exerted transversely, or approximately so, tothe direction of motion. It is also desirable to extend such lever ofsufficient height to be easily grasped by the driver,- and givesufficient leverage to the upper or long arm of said lever. To this endthe rack K is supported on the brace-rod I, and a brace, k, preferablyan extension" of the rack K, is extended between said rod and theadjacent handle, as will be more fully described hereinafter.

The landside A and share B may be of ordinary construction. Themold-board O has at its lower edge a hinge-connection with the share,preferably effected by strap-hinges, as shown. A cross-brace, D, extendsbetween the rear end of the share and the landside. The beam E has itsrear end secured to the landside, anda strut-brace, F, extends betweensaid beam and the brace D.

Handles G and H are, for convenience of referenee, denominated,respectively,the inner and outer handles. The former is secured SerialNo. 181.694. (No model.)

at its lower end to the beam, while the latter is supported on andsecured to the crossbraee D. It will be noticed that the strutbraceunites with the beam and the cross-brace at the point of connection ofthe handles with such parts, so that such brace not only serves to bracebetween the beam and the share, but also operates as a brace between thelower ends of the handles. Near their upper ends the handles areconnected by the usual round, and between. said handles and the beamextend brace-rods I and J. To these rods is connected a rack, K, whichextends between said rods, and such rack is formed with an extension, k,which reaches down to and is united with the inner handle. By this meansthe inner handle, which bears the back pressure of the mold-board, aswill be described, is braced from the rods I and J, as will be understood.

On the rear face of and transversely the mold'board, near its upperedge, I secure a crown-plate or bracebar, L. The lever M is pivoted in abracket, in, secured to the inner handle, and has its upper end arrangedto engage and be held in any desired adjustment by the rack K. The lowerend of this lever is connected by a link, N, with the mold-board andthrough the medium of the part L. As shown, the link connects with themold-board centrally between the front and rear edges thereof, so as toeffect the adjustment of said mold-board without any straining thereofresulting from unequal distribution of the pressure.

By means of the transverse bar L the moldboard is strengthened againstthe back-pressure of the soil, which is an important feature inadjustable mold-boards, as it is difficult to support the upper edge insuch manner as to sustain this back-pressure in the different positionsto which it may be adjusted; also, by connecting the link through whichthe moldboard is moved with the crown plate or bar, such part is causedto brace the 1noldboard against the forward pressure or strain of theadjusting devices, as well as against the backpressure of the soil.

Having thus described my invention, what I claim as new is- Thecombination, with the adjustable moldboard and the handles G H, theformer bethe mold-board, all substantially as and for ing provided witha bracket, m, of the beam, the purposes specified.

the bracerods I J the rack K mounted on 11 T the rods I J, )rovi cledwith-an er ctension lead- ART LMUS ROLO 5 ing to and united witlnhahdle-Gr, the lever Vitnesses:

pivoted to bracket m and arranged to engage TIMOTHY MURPHY, rack K, anda link connecting said lever and JOHN GALE.

